#if defined(__PCM__)
#include <16F877.h>
#include <stdio.h>
#include <stdlib.h>
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=20000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)  

void findnumbers(int temp);
void sendhex(int number, int digit);
void displaynumbers(int tens, int ones);
int getavgtemp(); 




void main() {
  int temp;
   int i=0;
  set_tris_b(0);
  
  temp = 0;
  output_b (0x00);
  while(TRUE) {
    if(kbhit()) {
        temp=getc();
        delay_ms(500);
            findnumbers(temp);
    }
  }
}




// function to find number
void findnumbers(int temp) 
   {

   int tens = 0; // tens position
   int ones = 0; // ones position
   
   output_high(PIN_D0); 
   if (temp < 100) // temp should never be over 100
   {
    tens = (temp/10)%(10);
    ones = (temp%10);
   }else{tens, ones = 2;}
   displaynumbers(tens,ones);
}

// this converts a number to the desired high/low combination
// for the 7 seg led display
void sendhex(int number, int digit)
   {
   output_high(PIN_D1);
   output_e (0x00);
   // send hex to port b to make number
   
   if (number == 0){output_b (0xC0);} // output 0 to port b
   if (number == 1){output_b (0xF9);} // 1
   if (number == 2){output_b (0xA4);}
   if (number == 3){output_b (0xB0);}
   if (number == 4){output_b (0x99);}
   if (number == 5){output_b (0x92);}
   if (number == 6){output_b (0x82);}
   if (number == 7){output_b (0xF8);}
   if (number == 8){output_b (0x80);}
   if (number == 9){output_b (0x90);}

   
   //turn on the digit(send high to common cathode via transistor)
   if (digit == 1){output_high(PIN_E0);}
   if (digit == 2){output_high(PIN_E1);}
   output_low(PIN_D1);
   
   }
   
void displaynumbers(int tens, int ones)// send to led
   {
   int i = 0;
   output_high(PIN_D2); 
   
   
   if(tens > 0)
   {
   sendhex(tens, 2);
   sendhex(ones, 1);
   }else{
   sendhex(ones, 2);
   }
   output_low(PIN_D2);
   }

//turn on the digit(send high to common cathode via transistor)
   if (digit == 1){output_high(PIN_E0);}
   if (digit == 2){output_high(PIN_E1);}
   output_low(PIN_D1);

//turn on the digit(send high to common cathode via transistor)
   if (digit == 1){output_low(PIN_E1); output_high(PIN_E0);}
   if (digit == 2){output_low(PIN_E0); output_high(PIN_E1);}
   output_low(PIN_D1);